Surgeon&#39;s knife.



M. PARKER. SURGEONS KNIFE. APPLIC LUN FILED JAN.16,1913.

1,100,89 Patented June 16, 1914.

Application filed Eenuary 16, 1913.

ORGAN Parisian, ad resident v ns knives, i ention is to provide e readily seps uization, thus im e,

and quickly att is handle. 1 a plan view is a side elevation, i 1, section, Fl 3 or th s emovable blade. l ig. F the handle meniifi 'ation, the blade or and in the act of be indie r, ember.

z'ne'i'nner may have the hand portion tin reel of any desired and is termed with a spring therewith. The inner -formed with e arm 2 and .nner end of the med with apertures the respective ends 2 formed with and an. outer stud 8, the latn z 'acent the free end i met at 9, the wall inclined at so as undercut portion 9 oi:

the blade to the arm bowed ae:enpon the inner in the socket 3 2, which 9 of the Specification of Letters Patent.

Patented Jon e 16, Serial No. 742,403.

parent that the blade 4 can be easily and quickly appliedto or removed from the ban; die member, since in the latter operation it is merely necessary to flex the arm 2 to the position shown' in Fig. 5 whereupon the outer end of the blade may be moved out wardly from engagement with the stud 8,

after which the arm 2 is permitted to re sumo its normal position, at which time the stud 7 can be moved out of the aperture 6 and the blade Withdrawn from the socket 3.

Having thus described. my invcntioml claim as new and desire to secure by Letters Patcnty r 1. ft knife consisting of a handle member formed with an integral spring arm, the inner end of the handle having a socket located adjacent said arm, a stud on the inner end of the arm, a stud on the outer end of the arm formed with an inwardly extending undercut portion, and a blade having an inner aperture to receive the inner stud and also having an outer aperture to receive the outer stud, the outer aperture being formed to provide an inclined wall which engages the undercut portion of the outer stud, the inner end of the blade being received in said socket. 4

2. A knife including a handle member provided with a spring arm, a blade seating on one side face of the arm, and interengaging means between the bladeand arm for holding the blade on} the arm by virtue of the spring tension exerted by said arm on said blade, said interengaging means being released by flexure of said arm.

3. A knife consisting of a handle member, a spring arm connected at one end to the handle member,'a blade seating on one side face oi the arm, means co-secure. the inner end portion of the blade against movement relative to the handle member, and means on the outer end portion of the arm to engage the blade to secure same to the arm, said means being cngageable with and dis engageable from the blade by flexing of the arm.

4. A knife consisting of a handle member, :1 spring disposed to he 'pzn'aiiei Wlilh the longitudinal axis of the handle member and cenneefed to the latter, a bhicie seuiing on one side face of the spring, i'he handle mem her having a socket; that receives one end of the blade, and means on the outer end portion 01" the arm to engage the blade said means being engageuble with and disengngenble from the blade when the spring is flexed. in :1 plane eppl'" to the longitudinal RTaIiS In testimony whei'eei 11111110 to this spevificntinn in 

